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STIP 3 ©CUT THE UPPER DROP TUSE Carefully saw through the tube squarely, at the mark made in Step 2. Use a hacksaw with 0A new fine-tooth blade. Rotating the upper tube as the sawing progresses will minimize run out and ensure a square 90 degree cut. CAUTION -DO NOT use a pipe or tubing cutter to cut the upper drop tube, this may damage the ' tube, causing it to be out of round thereby prohibiting assembly of the unit. Figure 3 STEP 4 0 FILE THE DROP TUBE File the upper tube square, and remove any burrs or rough edges. Make sure the cut is flat and square. IMPORTANT: Carefully file a good chamfer on the inside Figure 4 A the drop tube to provide alead-in for the o -ring and inlet tube to be installed in Step 5. STEP 5 D INSTALL INLET TUBE Generously apply common grease to the :)-Ring. Install O -Ring in the 0 -Ring groove of inlet Figure 5 tube. insertthe IN tube into the upper tube until it seats against the flange on the upper inlet tube. STEP 6 O DRILL HOLES Wdh the inlet tube in place, carefully drill (3)1/8" diameter pilot holes through the drop tube and inlet tube at three locations at 120 degree intervals around the tube, 1A inch below the flange. Using the pilot holes, drill (3) 5/16" dia. holes through the tubes. Remove the burrs from the drilling operation from the inside of the drop tube assembly with a fine half round file. IMPORTANT A 5/16" drill bit must be used. Do not substitute any other size drill bit. 1" Figure 6 STEP 7 O INSTALL SELF -CLINCHING STUDS Install the three (3) self -clinching studs, lock washers, and nuts in holes with the nuts and lock washers to the inside of the tube. Tighten clinch studs securely with a %" wrench. Use only the self -clinching studs that are supplied with the unit. Recommended seating torque is 150 inch- Ibs. Do not over tighten. Figure 7